847-832-0700 1946-D Lehigh Ave
Glenview, IL 60026


Backup Generators

Backup Generators

Backup generators are very common now. Years ago they were only for large buildings for emergency lighting or hospitals and medical facilities. Backup generators are usually natural gas fueled. They are controlled by a transfer switch. A transfer switch is constantly monitoring the building power. As soon as the transfer switch senses a lack of power from the power company within seconds the generator starts and the transfer switch switches to generator power. Keeping all the circuits that are controlled by the transfer switch running.

Many people with multiple homes have them. They don’t have to worry about having someone check on their house for them in emergency situations where the power might be out for days. They can rest assured that the heating and ventilating system will keep running.

  • If you want to determine what size generator you would want for your home do a load calculation on the house and then purchase a generator that will handle the whole house. Nowadays that is easier than it used to be. There are smart transfer switches. (the transfer switch is what changes from utility power to the generator power in an outage) You can wire a number of the large loads in your home (AC, Electric Oven, Electric Car Charger, Electric Heat etc.) through low voltage relays built in to the transfer switch. The smart transfer switch will sense when the generator is close to capacity and start shedding those large loads one at a time until the generator is below its capacity. This is very important because a generator will simply shut itself off if it is overloaded.

If you don’t want to pay for the whole house generator make a list of the items you would like to have stay on in case of a power outage.

  • Furnace
  • Sump pump
  • Refrigerator
  • AC
  • Wine Cellar
  • Master bedroom lights

Whatever is on the list we then do a load calculation to determine the size of the generator to handle those loads if they were all to be on at the same time.

  • Generators need regular maintenance think of your generator like a vehicle without wheels which is exactly what it is. All generators exercise themselves once a week to insure that the battery is charged and the unit is ready for action if there is a power outage. We have many regular yearly maintenance agreements with customers. We come out and change the air filter, Oil filter and spark plugs and install new oil.
  • You can monitor your generator remotely to insure that it will start in an emergency. All generator manufacturers have electronic monitoring systems for their new models for a number of years now. This is an added cost but peace of mind for the homeowner. If the generator fails to exercise itself because it won’t start an email and or text message can be sent to multiple addresses or phones. If the generator shows a bad battery, low oil or a number of other functions an email and or text message is sent to wherever the monitor is programmed to send them.

We are serving throughout the Chicago area and along the North Shore, including Evanston, Glencoe, Glenview, Highland Park, Kenilworth, Lake Forest, Northbrook, Northfield, Wilmette and Winnetka.


Automatic 24/7 Generator

Our Clients Reviews

It was a big job to get 240V from the house to the detached garage.  Current Electric did a beautiful job and was very easy to work with.  I highly recommend Current Electric.  I thought the price for their work was very reasonable too.

As always a pleasure to deal with, on time, great service, fair price. Thanks again!

Excellent, very professional, we would definitely use them again.


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Current Electrical Contractors, Inc.


1946-D Lehigh Ave, Glenview, IL 60026

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